根据涡轮发动机平衡流形展开模型的特点提出了两步建模方法。
Modeling method with two step is proposed according to the characteristic of the expansion model.
多项式表示的涡轮发动机平衡流形往往存在偏差，会使辨识的动态参数不太准确。
There were errors in expression of equilibrium manifold with polynomial which could make the dynamic parameters of identification inaccuracy.
例如，如果装了一台很大的舷外发动机，船只可能会因其重量而变得不平衡，尾部偏重，用俗话说倾向于在水中“蹲着”，而影响航行。
With a very large outboard motor, for example, the boat may be imbalanced by having that weight far astern and may "squat" in the water and not sail as well.
在今天的奥迪车上，发动机装在前轴前端，而把发动机后置显然会有助于大规模集中和前后轴重量分配平衡。
In today's Audi's the engine hangs in front of the front axle, and obviously bringing the engine back will help with mass centralization and front-rear weight balance.
虽然该车也有马力更强的八缸发动机可供选择，但我更喜欢使用六缸发动机的型号，因为它给人一种更灵活、更平衡的感觉。
While it is available with a more-powerful eight-cylinder engine, I preferred the six-cylinder model's more nimble, better-balanced feel.
为了保持发动机的良好平衡，连杆和连杆盖都要精心配套。
To maintain good engine balance, connecting rods and caps are carefully matched in sets for engines.
为保持发动机温度平衡，就必须有冷却系统。
To keep the engine temperature in balance, a cooling system is necessary.
航空发动机主轴轴承保持架动平衡精度对轴承的性能至关重要。
Dynamic balance accuracy of aeroengine main shaft bearing cage is of the utmost importance to bearing performance.
对精铸生产发动机曲轴平衡块的工艺设计进行了分析，设计出了批量生产行之有效的工艺方案。
Process design for crankshaft balance piece of engine by investment casting is analyzed. The practical process scheme of batchs of production has been made.
指出，由于发动机的各种故障引起个别气缸气体作用力减小，导致总的反倒力矩平衡性恶化，出现怠速抖动。
It is pointed that engines various faults can make the gas acting pressure lower in individual cylinders, lead to worsen the balance of gross overturn moment, and wobble the idling engine.
为了解决发动机噪音，珀金斯并不像内部负载平衡的泵优化的整体设计。
To tackle engine noise, Perkins does things like balancing internal loads to the pump to optimize the overall design.
本文提出了一种新的液体火箭发动机功率平衡通用计算方法。
A general method for the cycle power balance calculation of the liquid rocket engine is proposed in this paper.
在结构、认证和要求设备、传动装置、重量与平衡限制、起落架、发动机等等方面都有着许多的差异。
There are differences in structure, approved and required equipment, rigging, weight and balance limits, landing gear, engine, etc.
通过跟踪试验，从振动和磨损的角度，研究了曲轴飞轮组的平衡对发动机工作的影响。
The effect of unbalance weight of the crankshaft-flywheel on the engine's operation was studied from the view of shaking and wearing by means of tracing test.
在双转子航空发动机中，由于转子系统不可避免地存在不平衡量，当两个转子的转速比较接近时，发动机会出现拍振现象，拍振将引起振动强度过大问题。
There is inevitable unbalance in the dual-rotor system of the aero-engine, the beat vibration will occur to engine when two rotors are operating at approximately the same speed.
使用滑裙活塞的原因是：短行程发动机需除去部分活塞裙部，从而为曲轴的平衡重让出空间。
One reason for the slipper piston is that, on the short-stroke, over square engine, the piston skirt had to be cut away to make room for the counterweights on the crankshaft.
用固体火箭发动机中常用的瞬态平衡压强法对烟火剂式点火器内弹道性能进行了理论预示，并提出热损失系数的概念。
Instantaneous equilibrium pressure method is used in this paper to analysis the internal ballistics of pyrogen-type igniters. A concept of igniter heat loss coefficient is also presented.
三菱汽车四缸发动机的平衡装置。
在分析摩托车发动机曲柄连杆机构不平衡力的基础上，结合国内和国外的实践，总结了摩托车单缸发动机的基本平衡方法。
Based on analyzing the unbalanced force of crank-connecting rod mechanism, this paper describes the balance of motorcycle single-cylinder engine according to practices home and abroad.
曲轴平衡块质量分布不合理，会引起发动机振动大。
The irrational distribution of crankshaft counterbalance weight causes greater vibration.
在给定的道路循环下，考虑电池充放电平衡和发动机燃油经济性，提出了一种模糊逻辑控制策略。
Considering the batteries charge-discharge balance and the engine fuel efficiency under the given driving cycle, it is presented the control strategy using fuzzy logic.
指出，由于发动机的各种故障引起个别气缸气体作用力减小，导致总的反倒力矩平衡性恶化，出现怠速抖动。
It is pointed that engine's various faults can make the gas acting pressure lower in individual cylinders, lead to worsen the balance of gross overturn moment, and wobble the idling engine.
航空发动机尤其是高速旋转的微型涡喷发动机，不平衡是造成转子振动过大以及产生噪音的主要原因之一，直接影响发动机的工作性能和使用寿命。
Rotor unbalancing is one of the main causes of vibration and noise in aero-engine, especially in micro-turbojet engine, which affects work performance and fatigue life directly.
对涡轴发动机动力涡轮转子测扭基准轴的不平衡量进行了研究，提出了一种通过高速动平衡试验估算出测扭基准轴不平衡量的试验方法。
The torque tube unbalance of turboshaft power turbine rotor is investigated and a test method for estimating the unbalance is introduced with high speed dynamic balance test.
阐述了发动机曲轴动平衡试验时在曲柄销上需加装当量质量的原因，并提出了在曲轴动平衡试验时当量质量的计算方法。
The reason why crankshaft must be equipped the equivalent ring at the crankpin when the dynamical equilibrium test is made is pointed out.
发动机热平衡就是研究燃油放出总热量的在发动机中的分配情况，它是判断和分析内燃机各部分的热负荷以及设计冷却系统的基础。
Engine heat balance is defined as the distribution of all heat which gives out by fuel in ICE. It's the foundation of analyzing heat load in parts of ICE and designing cooling system.
通过试验，从振动和磨损的角度，研究了曲轴不平衡对发动机的影响。
The influence of unbalanced crankshafts on vibration and wear of engines is studied through tests.
发动机的各种故障会引起个别气缸气体作用力减小，导致总的反倒力矩平衡性恶化，致使发动机横向摆动加大，出现怠速异常振动。
It is pointed that engines various faults can make the gas acting pressure lower in individual cylinders, lead to worsen the balance of gross overturn moment, and wobble the idling engine.
发动机的各种故障会引起个别气缸气体作用力减小，导致总的反倒力矩平衡性恶化，致使发动机横向摆动加大，出现怠速异常振动。
It is pointed that engines various faults can make the gas acting pressure lower in individual cylinders, lead to worsen the balance of gross overturn moment, and wobble the idling engine.
应用推荐